Strasheela is a highly expressive constraint-based music composition
system. Users declaratively state a music theory and the computer
generates music which complies with this theory. A theory is
formulated as a constraint satisfaction problem (CSP) by a set of
rules (constraints) applied to a music representation in which some
aspects are expressed by variables (unknowns). Music constraint
programming is style-independent and is well-suited for highly
complex theories (e.g. a fully-fledged theory of harmony). Results
can be output into various formats including MIDI, Lilypond, and Csound.
This release brings many small-scale improvements and extensions to
Strasheela. Most importantly, the implementation of Schoenberg's
Theory of Harmony as CSP has been documented (HTML with sound
examples), Strasheela now supports adaptive just intonation, the
music representation has be extended by several convenient
constructors, and a number of pattern constraints have been added.
Also, some bug fixes have been made.
For more information on Strasheela, please visit
Changes are described at
This release can be downloaded from:
Interdisciplinary Centre for Computer Music Research
University of Plymouth
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